JPS5451801A - Picture audio reproducer - Google Patents

Picture audio reproducer

Info

Publication number
JPS5451801A
JPS5451801A JP11783477A JP11783477A JPS5451801A JP S5451801 A JPS5451801 A JP S5451801A JP 11783477 A JP11783477 A JP 11783477A JP 11783477 A JP11783477 A JP 11783477A JP S5451801 A JPS5451801 A JP S5451801A
Authority
JP
Japan
Prior art keywords
signal
circuit
audio
recorded
disc
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP11783477A
Other languages
Japanese (ja)
Inventor
Seiji Yonezawa
Yoshisada Oshida
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP11783477A priority Critical patent/JPS5451801A/en
Publication of JPS5451801A publication Critical patent/JPS5451801A/en
Pending legal-status Critical Current

Links

Landscapes

  • Optical Recording Or Reproduction (AREA)

Abstract

PURPOSE: To reproduce virtually distortion-free voice from the audio record which has recorded long term play by changing over the number of revolutions of the disc to a low speed at the audio reproduction and further using the one which has recorded audio information by a PCM system.
CONSTITUTION: The signal which has been sent to a circuit for reproducing only the audio information through a switch 84 converts the digital information having been recorded by a PCM system and being reproduced from a disc 1 revolving 15 times per second to analog signal with a D/A converter and this is then put in an amplifier circuit 10, whereby the input signal to a speaker 11 is obtained. Next, to use a piecture audio reproduction record, the signal is sent to a picture audio reproduction circuit 12 by the switch 84. The circuit 12 is a video disc FM signal demodulation circuit and the signal demodulated therein is inputted to a television set, whereby the exactly the same picture as general television pictures may be obtained
COPYRIGHT: (C)1979,JPO&Japio
JP11783477A 1977-10-03 1977-10-03 Picture audio reproducer Pending JPS5451801A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11783477A JPS5451801A (en) 1977-10-03 1977-10-03 Picture audio reproducer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11783477A JPS5451801A (en) 1977-10-03 1977-10-03 Picture audio reproducer

Publications (1)

Publication Number Publication Date
JPS5451801A true JPS5451801A (en) 1979-04-24

Family

ID=14721396

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11783477A Pending JPS5451801A (en) 1977-10-03 1977-10-03 Picture audio reproducer

Country Status (1)

Country Link
JP (1) JPS5451801A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0737331A (en) * 1980-07-16 1995-02-07 Discovision Assoc Method and device for recording
JPH07262702A (en) * 1982-01-25 1995-10-13 Discovision Assoc Optical disk

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5252603A (en) * 1975-10-24 1977-04-27 Sony Corp Reproduction appartus

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5252603A (en) * 1975-10-24 1977-04-27 Sony Corp Reproduction appartus

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0737331A (en) * 1980-07-16 1995-02-07 Discovision Assoc Method and device for recording
JP2591890B2 (en) * 1980-07-16 1997-03-19 デイスコビジョン アソシエーツ Recording method and apparatus
JPH07262702A (en) * 1982-01-25 1995-10-13 Discovision Assoc Optical disk

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